About the Number

72131490

72131489 ← → 72131491

2進数表記:100010011001010001110100010

漢数字表記:七千二百十三万千四百九十

素因数分解:

2 1 × 3 2 × 5 1 × 801461 1

素因数の和:801474
約数の個数: 24
約数和(自身を含む): 187542108
約数和(自身を除く): 115410618

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 801461, 1602922, 2404383, 4007305, 4808766, 7213149, 8014610, 12021915, 14426298, 24043830, 36065745, 72131490]

約数ペア:
[(1, 72131490), (2, 36065745), (3, 24043830), (5, 14426298), (6, 12021915), (9, 8014610), (10, 7213149), (15, 4808766), (18, 4007305), (30, 2404383), (45, 1602922), (90, 801461)]

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